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Message-ID: <20190604131516.13596-21-kishon@ti.com>
Date: Tue, 4 Jun 2019 18:45:06 +0530
From: Kishon Vijay Abraham I <kishon@...com>
To: Tom Joseph <tjoseph@...ence.com>,
Bjorn Helgaas <bhelgaas@...gle.com>,
Rob Herring <robh+dt@...nel.org>,
Mark Rutland <mark.rutland@....com>,
Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
Arnd Bergmann <arnd@...db.de>,
Gustavo Pimentel <gustavo.pimentel@...opsys.com>
CC: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Frank Rowand <frowand.list@...il.com>,
Jingoo Han <jingoohan1@...il.com>, <linux-pci@...r.kernel.org>,
<devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
<linux-omap@...r.kernel.org>, <linux-rockchip@...ts.infradead.org>,
<linux-arm-kernel@...ts.infradead.org>,
Kishon Vijay Abraham I <kishon@...com>
Subject: [RFC PATCH 20/30] PCI: endpoint: Add virtual function number in pci_epc ops
Add virtual function number in pci_epc ops. EPC controller driver
can perform virtual function specific initialization based on the
virtual function number.
Signed-off-by: Kishon Vijay Abraham I <kishon@...com>
---
.../pci/controller/dwc/pcie-designware-ep.c | 35 +++++----
drivers/pci/controller/pcie-cadence-ep.c | 31 ++++----
drivers/pci/controller/pcie-rockchip-ep.c | 18 ++---
drivers/pci/endpoint/functions/pci-epf-test.c | 64 ++++++++-------
drivers/pci/endpoint/pci-epc-core.c | 78 +++++++++++--------
include/linux/pci-epc.h | 48 ++++++------
6 files changed, 151 insertions(+), 123 deletions(-)
diff --git a/drivers/pci/controller/dwc/pcie-designware-ep.c b/drivers/pci/controller/dwc/pcie-designware-ep.c
index 2bf5a35c0570..c62c5eb48e78 100644
--- a/drivers/pci/controller/dwc/pcie-designware-ep.c
+++ b/drivers/pci/controller/dwc/pcie-designware-ep.c
@@ -73,7 +73,7 @@ static u8 dw_pcie_ep_find_capability(struct dw_pcie *pci, u8 cap)
return __dw_pcie_ep_find_next_cap(pci, next_cap_ptr, cap);
}
-static int dw_pcie_ep_write_header(struct pci_epc *epc, u8 func_no,
+static int dw_pcie_ep_write_header(struct pci_epc *epc, u8 func_no, u8 vfunc_no,
struct pci_epf_header *hdr)
{
struct dw_pcie_ep *ep = epc_get_drvdata(epc);
@@ -146,7 +146,7 @@ static int dw_pcie_ep_outbound_atu(struct dw_pcie_ep *ep, phys_addr_t phys_addr,
return 0;
}
-static void dw_pcie_ep_clear_bar(struct pci_epc *epc, u8 func_no,
+static void dw_pcie_ep_clear_bar(struct pci_epc *epc, u8 func_no, u8 vfunc_no,
struct pci_epf_bar *epf_bar)
{
struct dw_pcie_ep *ep = epc_get_drvdata(epc);
@@ -160,7 +160,7 @@ static void dw_pcie_ep_clear_bar(struct pci_epc *epc, u8 func_no,
clear_bit(atu_index, ep->ib_window_map);
}
-static int dw_pcie_ep_set_bar(struct pci_epc *epc, u8 func_no,
+static int dw_pcie_ep_set_bar(struct pci_epc *epc, u8 func_no, u8 vfunc_no,
struct pci_epf_bar *epf_bar)
{
int ret;
@@ -211,7 +211,7 @@ static int dw_pcie_find_index(struct dw_pcie_ep *ep, phys_addr_t addr,
return -EINVAL;
}
-static void dw_pcie_ep_unmap_addr(struct pci_epc *epc, u8 func_no,
+static void dw_pcie_ep_unmap_addr(struct pci_epc *epc, u8 func_no, u8 vfunc_no,
phys_addr_t addr)
{
int ret;
@@ -227,9 +227,8 @@ static void dw_pcie_ep_unmap_addr(struct pci_epc *epc, u8 func_no,
clear_bit(atu_index, ep->ob_window_map);
}
-static int dw_pcie_ep_map_addr(struct pci_epc *epc, u8 func_no,
- phys_addr_t addr,
- u64 pci_addr, size_t size)
+static int dw_pcie_ep_map_addr(struct pci_epc *epc, u8 func_no, u8 vfunc_no,
+ phys_addr_t addr, u64 pci_addr, size_t size)
{
int ret;
struct dw_pcie_ep *ep = epc_get_drvdata(epc);
@@ -244,7 +243,7 @@ static int dw_pcie_ep_map_addr(struct pci_epc *epc, u8 func_no,
return 0;
}
-static int dw_pcie_ep_get_msi(struct pci_epc *epc, u8 func_no)
+static int dw_pcie_ep_get_msi(struct pci_epc *epc, u8 func_no, u8 vfunc_no)
{
struct dw_pcie_ep *ep = epc_get_drvdata(epc);
struct dw_pcie *pci = to_dw_pcie_from_ep(ep);
@@ -263,7 +262,8 @@ static int dw_pcie_ep_get_msi(struct pci_epc *epc, u8 func_no)
return val;
}
-static int dw_pcie_ep_set_msi(struct pci_epc *epc, u8 func_no, u8 interrupts)
+static int dw_pcie_ep_set_msi(struct pci_epc *epc, u8 func_no, u8 vfunc_no,
+ u8 interrupts)
{
struct dw_pcie_ep *ep = epc_get_drvdata(epc);
struct dw_pcie *pci = to_dw_pcie_from_ep(ep);
@@ -283,7 +283,7 @@ static int dw_pcie_ep_set_msi(struct pci_epc *epc, u8 func_no, u8 interrupts)
return 0;
}
-static int dw_pcie_ep_get_msix(struct pci_epc *epc, u8 func_no)
+static int dw_pcie_ep_get_msix(struct pci_epc *epc, u8 func_no, u8 vfunc_no)
{
struct dw_pcie_ep *ep = epc_get_drvdata(epc);
struct dw_pcie *pci = to_dw_pcie_from_ep(ep);
@@ -302,7 +302,8 @@ static int dw_pcie_ep_get_msix(struct pci_epc *epc, u8 func_no)
return val;
}
-static int dw_pcie_ep_set_msix(struct pci_epc *epc, u8 func_no, u16 interrupts)
+static int dw_pcie_ep_set_msix(struct pci_epc *epc, u8 func_no, u8 vfunc_no,
+ u16 interrupts)
{
struct dw_pcie_ep *ep = epc_get_drvdata(epc);
struct dw_pcie *pci = to_dw_pcie_from_ep(ep);
@@ -322,7 +323,7 @@ static int dw_pcie_ep_set_msix(struct pci_epc *epc, u8 func_no, u16 interrupts)
return 0;
}
-static int dw_pcie_ep_raise_irq(struct pci_epc *epc, u8 func_no,
+static int dw_pcie_ep_raise_irq(struct pci_epc *epc, u8 func_no, u8 vfunc_no,
enum pci_epc_irq_type type, u16 interrupt_num)
{
struct dw_pcie_ep *ep = epc_get_drvdata(epc);
@@ -356,7 +357,7 @@ static int dw_pcie_ep_start(struct pci_epc *epc)
}
static const struct pci_epc_features*
-dw_pcie_ep_get_features(struct pci_epc *epc, u8 func_no)
+dw_pcie_ep_get_features(struct pci_epc *epc, u8 func_no, u8 vfunc_no)
{
struct dw_pcie_ep *ep = epc_get_drvdata(epc);
@@ -426,14 +427,14 @@ int dw_pcie_ep_raise_msi_irq(struct dw_pcie_ep *ep, u8 func_no,
aligned_offset = msg_addr_lower & (epc->mem->page_size - 1);
msg_addr = ((u64)msg_addr_upper) << 32 |
(msg_addr_lower & ~aligned_offset);
- ret = dw_pcie_ep_map_addr(epc, func_no, ep->msi_mem_phys, msg_addr,
+ ret = dw_pcie_ep_map_addr(epc, func_no, 0, ep->msi_mem_phys, msg_addr,
epc->mem->page_size);
if (ret)
return ret;
writel(msg_data | (interrupt_num - 1), ep->msi_mem + aligned_offset);
- dw_pcie_ep_unmap_addr(epc, func_no, ep->msi_mem_phys);
+ dw_pcie_ep_unmap_addr(epc, func_no, 0, ep->msi_mem_phys);
return 0;
}
@@ -485,14 +486,14 @@ int dw_pcie_ep_raise_msix_irq(struct dw_pcie_ep *ep, u8 func_no,
return -EPERM;
}
- ret = dw_pcie_ep_map_addr(epc, func_no, ep->msi_mem_phys, msg_addr,
+ ret = dw_pcie_ep_map_addr(epc, func_no, 0, ep->msi_mem_phys, msg_addr,
epc->mem->page_size);
if (ret)
return ret;
writel(msg_data, ep->msi_mem);
- dw_pcie_ep_unmap_addr(epc, func_no, ep->msi_mem_phys);
+ dw_pcie_ep_unmap_addr(epc, func_no, 0, ep->msi_mem_phys);
return 0;
}
diff --git a/drivers/pci/controller/pcie-cadence-ep.c b/drivers/pci/controller/pcie-cadence-ep.c
index 23aa5aba1c86..df8fc495ffd9 100644
--- a/drivers/pci/controller/pcie-cadence-ep.c
+++ b/drivers/pci/controller/pcie-cadence-ep.c
@@ -49,7 +49,7 @@ struct cdns_pcie_ep {
u8 irq_pending;
};
-static int cdns_pcie_ep_write_header(struct pci_epc *epc, u8 fn,
+static int cdns_pcie_ep_write_header(struct pci_epc *epc, u8 fn, u8 vfn,
struct pci_epf_header *hdr)
{
struct cdns_pcie_ep *ep = epc_get_drvdata(epc);
@@ -80,7 +80,7 @@ static int cdns_pcie_ep_write_header(struct pci_epc *epc, u8 fn,
return 0;
}
-static int cdns_pcie_ep_set_bar(struct pci_epc *epc, u8 fn,
+static int cdns_pcie_ep_set_bar(struct pci_epc *epc, u8 fn, u8 vfn,
struct pci_epf_bar *epf_bar)
{
struct cdns_pcie_ep *ep = epc_get_drvdata(epc);
@@ -147,7 +147,7 @@ static int cdns_pcie_ep_set_bar(struct pci_epc *epc, u8 fn,
return 0;
}
-static void cdns_pcie_ep_clear_bar(struct pci_epc *epc, u8 fn,
+static void cdns_pcie_ep_clear_bar(struct pci_epc *epc, u8 fn, u8 vfn,
struct pci_epf_bar *epf_bar)
{
struct cdns_pcie_ep *ep = epc_get_drvdata(epc);
@@ -174,8 +174,8 @@ static void cdns_pcie_ep_clear_bar(struct pci_epc *epc, u8 fn,
cdns_pcie_writel(pcie, CDNS_PCIE_AT_IB_EP_FUNC_BAR_ADDR1(fn, bar), 0);
}
-static int cdns_pcie_ep_map_addr(struct pci_epc *epc, u8 fn, phys_addr_t addr,
- u64 pci_addr, size_t size)
+static int cdns_pcie_ep_map_addr(struct pci_epc *epc, u8 fn, u8 vfn,
+ phys_addr_t addr, u64 pci_addr, size_t size)
{
struct cdns_pcie_ep *ep = epc_get_drvdata(epc);
struct cdns_pcie *pcie = &ep->pcie;
@@ -196,7 +196,7 @@ static int cdns_pcie_ep_map_addr(struct pci_epc *epc, u8 fn, phys_addr_t addr,
return 0;
}
-static void cdns_pcie_ep_unmap_addr(struct pci_epc *epc, u8 fn,
+static void cdns_pcie_ep_unmap_addr(struct pci_epc *epc, u8 fn, u8 vfn,
phys_addr_t addr)
{
struct cdns_pcie_ep *ep = epc_get_drvdata(epc);
@@ -216,7 +216,7 @@ static void cdns_pcie_ep_unmap_addr(struct pci_epc *epc, u8 fn,
clear_bit(r, &ep->ob_region_map);
}
-static int cdns_pcie_ep_set_msi(struct pci_epc *epc, u8 fn, u8 mmc)
+static int cdns_pcie_ep_set_msi(struct pci_epc *epc, u8 fn, u8 vfn, u8 mmc)
{
struct cdns_pcie_ep *ep = epc_get_drvdata(epc);
struct cdns_pcie *pcie = &ep->pcie;
@@ -236,7 +236,7 @@ static int cdns_pcie_ep_set_msi(struct pci_epc *epc, u8 fn, u8 mmc)
return 0;
}
-static int cdns_pcie_ep_get_msi(struct pci_epc *epc, u8 fn)
+static int cdns_pcie_ep_get_msi(struct pci_epc *epc, u8 fn, u8 vfn)
{
struct cdns_pcie_ep *ep = epc_get_drvdata(epc);
struct cdns_pcie *pcie = &ep->pcie;
@@ -297,7 +297,8 @@ static void cdns_pcie_ep_assert_intx(struct cdns_pcie_ep *ep, u8 fn,
writel(0, ep->irq_cpu_addr + offset);
}
-static int cdns_pcie_ep_send_legacy_irq(struct cdns_pcie_ep *ep, u8 fn, u8 intx)
+static int cdns_pcie_ep_send_legacy_irq(struct cdns_pcie_ep *ep, u8 fn, u8 vfn,
+ u8 intx)
{
u16 cmd;
@@ -305,17 +306,17 @@ static int cdns_pcie_ep_send_legacy_irq(struct cdns_pcie_ep *ep, u8 fn, u8 intx)
if (cmd & PCI_COMMAND_INTX_DISABLE)
return -EINVAL;
- cdns_pcie_ep_assert_intx(ep, fn, intx, true);
+ cdns_pcie_ep_assert_intx(ep, fn, vfn, intx, true);
/*
* The mdelay() value was taken from dra7xx_pcie_raise_legacy_irq()
* from drivers/pci/dwc/pci-dra7xx.c
*/
mdelay(1);
- cdns_pcie_ep_assert_intx(ep, fn, intx, false);
+ cdns_pcie_ep_assert_intx(ep, fn, vfn, intx, false);
return 0;
}
-static int cdns_pcie_ep_send_msi_irq(struct cdns_pcie_ep *ep, u8 fn,
+static int cdns_pcie_ep_send_msi_irq(struct cdns_pcie_ep *ep, u8 fn, u8 vfn,
u8 interrupt_num)
{
struct cdns_pcie *pcie = &ep->pcie;
@@ -371,10 +372,10 @@ static int cdns_pcie_ep_raise_irq(struct pci_epc *epc, u8 fn,
switch (type) {
case PCI_EPC_IRQ_LEGACY:
- return cdns_pcie_ep_send_legacy_irq(ep, fn, 0);
+ return cdns_pcie_ep_send_legacy_irq(ep, fn, vfn, 0);
case PCI_EPC_IRQ_MSI:
- return cdns_pcie_ep_send_msi_irq(ep, fn, interrupt_num);
+ return cdns_pcie_ep_send_msi_irq(ep, fn, vfn, interrupt_num);
default:
break;
@@ -414,7 +415,7 @@ static const struct pci_epc_features cdns_pcie_epc_features = {
};
static const struct pci_epc_features*
-cdns_pcie_ep_get_features(struct pci_epc *epc, u8 func_no)
+cdns_pcie_ep_get_features(struct pci_epc *epc, u8 func_no, u8 vfunc_no)
{
return &cdns_pcie_epc_features;
}
diff --git a/drivers/pci/controller/pcie-rockchip-ep.c b/drivers/pci/controller/pcie-rockchip-ep.c
index d743b0a48988..361d3ec8fa02 100644
--- a/drivers/pci/controller/pcie-rockchip-ep.c
+++ b/drivers/pci/controller/pcie-rockchip-ep.c
@@ -121,7 +121,7 @@ static void rockchip_pcie_prog_ep_ob_atu(struct rockchip_pcie *rockchip, u8 fn,
ROCKCHIP_PCIE_AT_OB_REGION_CPU_ADDR1(r));
}
-static int rockchip_pcie_ep_write_header(struct pci_epc *epc, u8 fn,
+static int rockchip_pcie_ep_write_header(struct pci_epc *epc, u8 fn, u8 vf,
struct pci_epf_header *hdr)
{
struct rockchip_pcie_ep *ep = epc_get_drvdata(epc);
@@ -158,7 +158,7 @@ static int rockchip_pcie_ep_write_header(struct pci_epc *epc, u8 fn,
return 0;
}
-static int rockchip_pcie_ep_set_bar(struct pci_epc *epc, u8 fn,
+static int rockchip_pcie_ep_set_bar(struct pci_epc *epc, u8 fn, u8 vf,
struct pci_epf_bar *epf_bar)
{
struct rockchip_pcie_ep *ep = epc_get_drvdata(epc);
@@ -226,7 +226,7 @@ static int rockchip_pcie_ep_set_bar(struct pci_epc *epc, u8 fn,
return 0;
}
-static void rockchip_pcie_ep_clear_bar(struct pci_epc *epc, u8 fn,
+static void rockchip_pcie_ep_clear_bar(struct pci_epc *epc, u8 fn, u8 vf,
struct pci_epf_bar *epf_bar)
{
struct rockchip_pcie_ep *ep = epc_get_drvdata(epc);
@@ -255,7 +255,7 @@ static void rockchip_pcie_ep_clear_bar(struct pci_epc *epc, u8 fn,
ROCKCHIP_PCIE_AT_IB_EP_FUNC_BAR_ADDR1(fn, bar));
}
-static int rockchip_pcie_ep_map_addr(struct pci_epc *epc, u8 fn,
+static int rockchip_pcie_ep_map_addr(struct pci_epc *epc, u8 fn, u8 vf,
phys_addr_t addr, u64 pci_addr,
size_t size)
{
@@ -283,7 +283,7 @@ static int rockchip_pcie_ep_map_addr(struct pci_epc *epc, u8 fn,
return 0;
}
-static void rockchip_pcie_ep_unmap_addr(struct pci_epc *epc, u8 fn,
+static void rockchip_pcie_ep_unmap_addr(struct pci_epc *epc, u8 fn, u8 vf,
phys_addr_t addr)
{
struct rockchip_pcie_ep *ep = epc_get_drvdata(epc);
@@ -307,7 +307,7 @@ static void rockchip_pcie_ep_unmap_addr(struct pci_epc *epc, u8 fn,
clear_bit(r, &ep->ob_region_map);
}
-static int rockchip_pcie_ep_set_msi(struct pci_epc *epc, u8 fn,
+static int rockchip_pcie_ep_set_msi(struct pci_epc *epc, u8 fn, u8 vf,
u8 multi_msg_cap)
{
struct rockchip_pcie_ep *ep = epc_get_drvdata(epc);
@@ -328,7 +328,7 @@ static int rockchip_pcie_ep_set_msi(struct pci_epc *epc, u8 fn,
return 0;
}
-static int rockchip_pcie_ep_get_msi(struct pci_epc *epc, u8 fn)
+static int rockchip_pcie_ep_get_msi(struct pci_epc *epc, u8 fn, u8 vf)
{
struct rockchip_pcie_ep *ep = epc_get_drvdata(epc);
struct rockchip_pcie *rockchip = &ep->rockchip;
@@ -470,7 +470,7 @@ static int rockchip_pcie_ep_send_msi_irq(struct rockchip_pcie_ep *ep, u8 fn,
return 0;
}
-static int rockchip_pcie_ep_raise_irq(struct pci_epc *epc, u8 fn,
+static int rockchip_pcie_ep_raise_irq(struct pci_epc *epc, u8 fn, u8 vf,
enum pci_epc_irq_type type,
u16 interrupt_num)
{
@@ -509,7 +509,7 @@ static const struct pci_epc_features rockchip_pcie_epc_features = {
};
static const struct pci_epc_features*
-rockchip_pcie_ep_get_features(struct pci_epc *epc, u8 func_no)
+rockchip_pcie_ep_get_features(struct pci_epc *epc, u8 func_no, u8 vfunc_no)
{
return &rockchip_pcie_epc_features;
}
diff --git a/drivers/pci/endpoint/functions/pci-epf-test.c b/drivers/pci/endpoint/functions/pci-epf-test.c
index 6380641ccc7a..aaa90590984c 100644
--- a/drivers/pci/endpoint/functions/pci-epf-test.c
+++ b/drivers/pci/endpoint/functions/pci-epf-test.c
@@ -93,8 +93,8 @@ static int pci_epf_test_copy(struct pci_epf_test *epf_test)
goto err;
}
- ret = pci_epc_map_addr(epc, epf->func_no, src_phys_addr, reg->src_addr,
- reg->size);
+ ret = pci_epc_map_addr(epc, epf->func_no, epf->vfunc_no, src_phys_addr,
+ reg->src_addr, reg->size);
if (ret) {
dev_err(dev, "Failed to map source address\n");
reg->status = STATUS_SRC_ADDR_INVALID;
@@ -109,8 +109,8 @@ static int pci_epf_test_copy(struct pci_epf_test *epf_test)
goto err_src_map_addr;
}
- ret = pci_epc_map_addr(epc, epf->func_no, dst_phys_addr, reg->dst_addr,
- reg->size);
+ ret = pci_epc_map_addr(epc, epf->func_no, epf->vfunc_no, dst_phys_addr,
+ reg->dst_addr, reg->size);
if (ret) {
dev_err(dev, "Failed to map destination address\n");
reg->status = STATUS_DST_ADDR_INVALID;
@@ -119,13 +119,13 @@ static int pci_epf_test_copy(struct pci_epf_test *epf_test)
memcpy(dst_addr, src_addr, reg->size);
- pci_epc_unmap_addr(epc, epf->func_no, dst_phys_addr);
+ pci_epc_unmap_addr(epc, epf->func_no, epf->vfunc_no, dst_phys_addr);
err_dst_addr:
pci_epc_mem_free_addr(epc, dst_phys_addr, dst_addr, reg->size);
err_src_map_addr:
- pci_epc_unmap_addr(epc, epf->func_no, src_phys_addr);
+ pci_epc_unmap_addr(epc, epf->func_no, epf->vfunc_no, src_phys_addr);
err_src_addr:
pci_epc_mem_free_addr(epc, src_phys_addr, src_addr, reg->size);
@@ -155,8 +155,8 @@ static int pci_epf_test_read(struct pci_epf_test *epf_test)
goto err;
}
- ret = pci_epc_map_addr(epc, epf->func_no, phys_addr, reg->src_addr,
- reg->size);
+ ret = pci_epc_map_addr(epc, epf->func_no, epf->vfunc_no, phys_addr,
+ reg->src_addr, reg->size);
if (ret) {
dev_err(dev, "Failed to map address\n");
reg->status = STATUS_SRC_ADDR_INVALID;
@@ -178,7 +178,7 @@ static int pci_epf_test_read(struct pci_epf_test *epf_test)
kfree(buf);
err_map_addr:
- pci_epc_unmap_addr(epc, epf->func_no, phys_addr);
+ pci_epc_unmap_addr(epc, epf->func_no, epf->vfunc_no, phys_addr);
err_addr:
pci_epc_mem_free_addr(epc, phys_addr, src_addr, reg->size);
@@ -207,8 +207,8 @@ static int pci_epf_test_write(struct pci_epf_test *epf_test)
goto err;
}
- ret = pci_epc_map_addr(epc, epf->func_no, phys_addr, reg->dst_addr,
- reg->size);
+ ret = pci_epc_map_addr(epc, epf->func_no, epf->vfunc_no, phys_addr,
+ reg->dst_addr, reg->size);
if (ret) {
dev_err(dev, "Failed to map address\n");
reg->status = STATUS_DST_ADDR_INVALID;
@@ -235,7 +235,7 @@ static int pci_epf_test_write(struct pci_epf_test *epf_test)
kfree(buf);
err_map_addr:
- pci_epc_unmap_addr(epc, epf->func_no, phys_addr);
+ pci_epc_unmap_addr(epc, epf->func_no, epf->vfunc_no, phys_addr);
err_addr:
pci_epc_mem_free_addr(epc, phys_addr, dst_addr, reg->size);
@@ -257,13 +257,16 @@ static void pci_epf_test_raise_irq(struct pci_epf_test *epf_test, u8 irq_type,
switch (irq_type) {
case IRQ_TYPE_LEGACY:
- pci_epc_raise_irq(epc, epf->func_no, PCI_EPC_IRQ_LEGACY, 0);
+ pci_epc_raise_irq(epc, epf->func_no, epf->vfunc_no,
+ PCI_EPC_IRQ_LEGACY, 0);
break;
case IRQ_TYPE_MSI:
- pci_epc_raise_irq(epc, epf->func_no, PCI_EPC_IRQ_MSI, irq);
+ pci_epc_raise_irq(epc, epf->func_no, epf->vfunc_no,
+ PCI_EPC_IRQ_MSI, irq);
break;
case IRQ_TYPE_MSIX:
- pci_epc_raise_irq(epc, epf->func_no, PCI_EPC_IRQ_MSIX, irq);
+ pci_epc_raise_irq(epc, epf->func_no, epf->vfunc_no,
+ PCI_EPC_IRQ_MSIX, irq);
break;
default:
dev_err(dev, "Failed to raise IRQ, unknown type\n");
@@ -298,7 +301,8 @@ static void pci_epf_test_cmd_handler(struct work_struct *work)
if (command & COMMAND_RAISE_LEGACY_IRQ) {
reg->status = STATUS_IRQ_RAISED;
- pci_epc_raise_irq(epc, epf->func_no, PCI_EPC_IRQ_LEGACY, 0);
+ pci_epc_raise_irq(epc, epf->func_no, epf->vfunc_no,
+ PCI_EPC_IRQ_LEGACY, 0);
goto reset_handler;
}
@@ -336,22 +340,22 @@ static void pci_epf_test_cmd_handler(struct work_struct *work)
}
if (command & COMMAND_RAISE_MSI_IRQ) {
- count = pci_epc_get_msi(epc, epf->func_no);
+ count = pci_epc_get_msi(epc, epf->func_no, epf->vfunc_no);
if (reg->irq_number > count || count <= 0)
goto reset_handler;
reg->status = STATUS_IRQ_RAISED;
- pci_epc_raise_irq(epc, epf->func_no, PCI_EPC_IRQ_MSI,
- reg->irq_number);
+ pci_epc_raise_irq(epc, epf->func_no, epf->vfunc_no,
+ PCI_EPC_IRQ_MSI, reg->irq_number);
goto reset_handler;
}
if (command & COMMAND_RAISE_MSIX_IRQ) {
- count = pci_epc_get_msix(epc, epf->func_no);
+ count = pci_epc_get_msix(epc, epf->func_no, epf->vfunc_no);
if (reg->irq_number > count || count <= 0)
goto reset_handler;
reg->status = STATUS_IRQ_RAISED;
- pci_epc_raise_irq(epc, epf->func_no, PCI_EPC_IRQ_MSIX,
- reg->irq_number);
+ pci_epc_raise_irq(epc, epf->func_no, epf->vfunc_no,
+ PCI_EPC_IRQ_MSIX, reg->irq_number);
goto reset_handler;
}
@@ -386,7 +390,8 @@ static void pci_epf_test_unbind(struct pci_epf *epf)
if (epf_test->reg[bar]) {
pci_epf_free_space(epf, epf_test->reg[bar], bar);
- pci_epc_clear_bar(epc, epf->func_no, epf_bar);
+ pci_epc_clear_bar(epc, epf->func_no, epf->vfunc_no,
+ epf_bar);
}
}
}
@@ -410,7 +415,8 @@ static int pci_epf_test_set_bar(struct pci_epf *epf)
if (!!(epc_features->reserved_bar & (1 << bar)))
continue;
- ret = pci_epc_set_bar(epc, epf->func_no, epf_bar);
+ ret = pci_epc_set_bar(epc, epf->func_no, epf->vfunc_no,
+ epf_bar);
if (ret) {
pci_epf_free_space(epf, epf_test->reg[bar], bar);
dev_err(dev, "Failed to set BAR%d\n", bar);
@@ -503,7 +509,7 @@ static int pci_epf_test_bind(struct pci_epf *epf)
if (WARN_ON_ONCE(!epc))
return -EINVAL;
- epc_features = pci_epc_get_features(epc, epf->func_no);
+ epc_features = pci_epc_get_features(epc, epf->func_no, epf->vfunc_no);
if (epc_features) {
linkup_notifier = epc_features->linkup_notifier;
msix_capable = epc_features->msix_capable;
@@ -515,7 +521,7 @@ static int pci_epf_test_bind(struct pci_epf *epf)
epf_test->test_reg_bar = test_reg_bar;
epf_test->epc_features = epc_features;
- ret = pci_epc_write_header(epc, epf->func_no, header);
+ ret = pci_epc_write_header(epc, epf->func_no, epf->vfunc_no, header);
if (ret) {
dev_err(dev, "Configuration header write failed\n");
return ret;
@@ -530,7 +536,8 @@ static int pci_epf_test_bind(struct pci_epf *epf)
return ret;
if (msi_capable) {
- ret = pci_epc_set_msi(epc, epf->func_no, epf->msi_interrupts);
+ ret = pci_epc_set_msi(epc, epf->func_no, epf->vfunc_no,
+ epf->msi_interrupts);
if (ret) {
dev_err(dev, "MSI configuration failed\n");
return ret;
@@ -538,7 +545,8 @@ static int pci_epf_test_bind(struct pci_epf *epf)
}
if (msix_capable) {
- ret = pci_epc_set_msix(epc, epf->func_no, epf->msix_interrupts);
+ ret = pci_epc_set_msix(epc, epf->func_no, epf->vfunc_no,
+ epf->msix_interrupts);
if (ret) {
dev_err(dev, "MSI-X configuration failed\n");
return ret;
diff --git a/drivers/pci/endpoint/pci-epc-core.c b/drivers/pci/endpoint/pci-epc-core.c
index 55417504791b..acd74565021b 100644
--- a/drivers/pci/endpoint/pci-epc-core.c
+++ b/drivers/pci/endpoint/pci-epc-core.c
@@ -111,13 +111,15 @@ EXPORT_SYMBOL_GPL(pci_epc_get_first_free_bar);
* @epc: the features supported by *this* EPC device will be returned
* @func_no: the features supported by the EPC device specific to the
* endpoint function with func_no will be returned
+ * @vfunc_no: the features supported by the EPC device specific to the
+ * virtual endpoint function with vfunc_no will be returned
*
* Invoke to get the features provided by the EPC which may be
* specific to an endpoint function. Returns pci_epc_features on success
* and NULL for any failures.
*/
const struct pci_epc_features *pci_epc_get_features(struct pci_epc *epc,
- u8 func_no)
+ u8 func_no, u8 vfunc_no)
{
const struct pci_epc_features *epc_features;
@@ -128,7 +130,7 @@ const struct pci_epc_features *pci_epc_get_features(struct pci_epc *epc,
return NULL;
mutex_lock(&epc->lock);
- epc_features = epc->ops->get_features(epc, func_no);
+ epc_features = epc->ops->get_features(epc, func_no, vfunc_no);
mutex_unlock(&epc->lock);
return epc_features;
@@ -179,13 +181,14 @@ EXPORT_SYMBOL_GPL(pci_epc_start);
/**
* pci_epc_raise_irq() - interrupt the host system
* @epc: the EPC device which has to interrupt the host
- * @func_no: the endpoint function number in the EPC device
+ * @func_no: the physical endpoint function number in the EPC device
+ * @vfunc_no: the virtual endpoint function number in the physical function
* @type: specify the type of interrupt; legacy, MSI or MSI-X
* @interrupt_num: the MSI or MSI-X interrupt number
*
* Invoke to raise an legacy, MSI or MSI-X interrupt
*/
-int pci_epc_raise_irq(struct pci_epc *epc, u8 func_no,
+int pci_epc_raise_irq(struct pci_epc *epc, u8 func_no, u8 vfunc_no,
enum pci_epc_irq_type type, u16 interrupt_num)
{
int ret;
@@ -197,7 +200,7 @@ int pci_epc_raise_irq(struct pci_epc *epc, u8 func_no,
return 0;
mutex_lock(&epc->lock);
- ret = epc->ops->raise_irq(epc, func_no, type, interrupt_num);
+ ret = epc->ops->raise_irq(epc, func_no, vfunc_no, type, interrupt_num);
mutex_unlock(&epc->lock);
return ret;
@@ -207,11 +210,12 @@ EXPORT_SYMBOL_GPL(pci_epc_raise_irq);
/**
* pci_epc_get_msi() - get the number of MSI interrupt numbers allocated
* @epc: the EPC device to which MSI interrupts was requested
- * @func_no: the endpoint function number in the EPC device
+ * @func_no: the physical endpoint function number in the EPC device
+ * @vfunc_no: the virtual endpoint function number in the physical function
*
* Invoke to get the number of MSI interrupts allocated by the RC
*/
-int pci_epc_get_msi(struct pci_epc *epc, u8 func_no)
+int pci_epc_get_msi(struct pci_epc *epc, u8 func_no, u8 vfunc_no)
{
int interrupt;
@@ -222,7 +226,7 @@ int pci_epc_get_msi(struct pci_epc *epc, u8 func_no)
return 0;
mutex_lock(&epc->lock);
- interrupt = epc->ops->get_msi(epc, func_no);
+ interrupt = epc->ops->get_msi(epc, func_no, vfunc_no);
mutex_unlock(&epc->lock);
if (interrupt < 0)
@@ -237,12 +241,13 @@ EXPORT_SYMBOL_GPL(pci_epc_get_msi);
/**
* pci_epc_set_msi() - set the number of MSI interrupt numbers required
* @epc: the EPC device on which MSI has to be configured
- * @func_no: the endpoint function number in the EPC device
+ * @func_no: the physical endpoint function number in the EPC device
+ * @vfunc_no: the virtual endpoint function number in the physical function
* @interrupts: number of MSI interrupts required by the EPF
*
* Invoke to set the required number of MSI interrupts.
*/
-int pci_epc_set_msi(struct pci_epc *epc, u8 func_no, u8 interrupts)
+int pci_epc_set_msi(struct pci_epc *epc, u8 func_no, u8 vfunc_no, u8 interrupts)
{
int ret;
u8 encode_int;
@@ -257,7 +262,7 @@ int pci_epc_set_msi(struct pci_epc *epc, u8 func_no, u8 interrupts)
encode_int = order_base_2(interrupts);
mutex_lock(&epc->lock);
- ret = epc->ops->set_msi(epc, func_no, encode_int);
+ ret = epc->ops->set_msi(epc, func_no, vfunc_no, encode_int);
mutex_unlock(&epc->lock);
return ret;
@@ -267,11 +272,12 @@ EXPORT_SYMBOL_GPL(pci_epc_set_msi);
/**
* pci_epc_get_msix() - get the number of MSI-X interrupt numbers allocated
* @epc: the EPC device to which MSI-X interrupts was requested
- * @func_no: the endpoint function number in the EPC device
+ * @func_no: the physical endpoint function number in the EPC device
+ * @vfunc_no: the virtual endpoint function number in the physical function
*
* Invoke to get the number of MSI-X interrupts allocated by the RC
*/
-int pci_epc_get_msix(struct pci_epc *epc, u8 func_no)
+int pci_epc_get_msix(struct pci_epc *epc, u8 func_no, u8 vfunc_no)
{
int interrupt;
@@ -282,7 +288,7 @@ int pci_epc_get_msix(struct pci_epc *epc, u8 func_no)
return 0;
mutex_lock(&epc->lock);
- interrupt = epc->ops->get_msix(epc, func_no);
+ interrupt = epc->ops->get_msix(epc, func_no, vfunc_no);
mutex_unlock(&epc->lock);
if (interrupt < 0)
@@ -295,12 +301,14 @@ EXPORT_SYMBOL_GPL(pci_epc_get_msix);
/**
* pci_epc_set_msix() - set the number of MSI-X interrupt numbers required
* @epc: the EPC device on which MSI-X has to be configured
- * @func_no: the endpoint function number in the EPC device
+ * @func_no: the physical endpoint function number in the EPC device
+ * @vfunc_no: the virtual endpoint function number in the physical function
* @interrupts: number of MSI-X interrupts required by the EPF
*
* Invoke to set the required number of MSI-X interrupts.
*/
-int pci_epc_set_msix(struct pci_epc *epc, u8 func_no, u16 interrupts)
+int pci_epc_set_msix(struct pci_epc *epc, u8 func_no, u8 vfunc_no,
+ u16 interrupts)
{
int ret;
@@ -312,7 +320,7 @@ int pci_epc_set_msix(struct pci_epc *epc, u8 func_no, u16 interrupts)
return 0;
mutex_lock(&epc->lock);
- ret = epc->ops->set_msix(epc, func_no, interrupts - 1);
+ ret = epc->ops->set_msix(epc, func_no, vfunc_no, interrupts - 1);
mutex_unlock(&epc->lock);
return ret;
@@ -322,12 +330,13 @@ EXPORT_SYMBOL_GPL(pci_epc_set_msix);
/**
* pci_epc_unmap_addr() - unmap CPU address from PCI address
* @epc: the EPC device on which address is allocated
- * @func_no: the endpoint function number in the EPC device
+ * @func_no: the physical endpoint function number in the EPC device
+ * @vfunc_no: the virtual endpoint function number in the physical function
* @phys_addr: physical address of the local system
*
* Invoke to unmap the CPU address from PCI address.
*/
-void pci_epc_unmap_addr(struct pci_epc *epc, u8 func_no,
+void pci_epc_unmap_addr(struct pci_epc *epc, u8 func_no, u8 vfunc_no,
phys_addr_t phys_addr)
{
if (IS_ERR_OR_NULL(epc) || func_no >= epc->max_functions)
@@ -337,7 +346,7 @@ void pci_epc_unmap_addr(struct pci_epc *epc, u8 func_no,
return;
mutex_lock(&epc->lock);
- epc->ops->unmap_addr(epc, func_no, phys_addr);
+ epc->ops->unmap_addr(epc, func_no, vfunc_no, phys_addr);
mutex_unlock(&epc->lock);
}
EXPORT_SYMBOL_GPL(pci_epc_unmap_addr);
@@ -345,14 +354,15 @@ EXPORT_SYMBOL_GPL(pci_epc_unmap_addr);
/**
* pci_epc_map_addr() - map CPU address to PCI address
* @epc: the EPC device on which address is allocated
- * @func_no: the endpoint function number in the EPC device
+ * @func_no: the physical endpoint function number in the EPC device
+ * @vfunc_no: the virtual endpoint function number in the physical function
* @phys_addr: physical address of the local system
* @pci_addr: PCI address to which the physical address should be mapped
* @size: the size of the allocation
*
* Invoke to map CPU address with PCI address.
*/
-int pci_epc_map_addr(struct pci_epc *epc, u8 func_no,
+int pci_epc_map_addr(struct pci_epc *epc, u8 func_no, u8 vfunc_no,
phys_addr_t phys_addr, u64 pci_addr, size_t size)
{
int ret;
@@ -364,7 +374,8 @@ int pci_epc_map_addr(struct pci_epc *epc, u8 func_no,
return 0;
mutex_lock(&epc->lock);
- ret = epc->ops->map_addr(epc, func_no, phys_addr, pci_addr, size);
+ ret = epc->ops->map_addr(epc, func_no, vfunc_no, phys_addr, pci_addr,
+ size);
mutex_unlock(&epc->lock);
return ret;
@@ -374,12 +385,13 @@ EXPORT_SYMBOL_GPL(pci_epc_map_addr);
/**
* pci_epc_clear_bar() - reset the BAR
* @epc: the EPC device for which the BAR has to be cleared
- * @func_no: the endpoint function number in the EPC device
+ * @func_no: the physical endpoint function number in the EPC device
+ * @vfunc_no: the virtual endpoint function number in the physical function
* @epf_bar: the struct epf_bar that contains the BAR information
*
* Invoke to reset the BAR of the endpoint device.
*/
-void pci_epc_clear_bar(struct pci_epc *epc, u8 func_no,
+void pci_epc_clear_bar(struct pci_epc *epc, u8 func_no, u8 vfunc_no,
struct pci_epf_bar *epf_bar)
{
if (IS_ERR_OR_NULL(epc) || func_no >= epc->max_functions ||
@@ -391,7 +403,7 @@ void pci_epc_clear_bar(struct pci_epc *epc, u8 func_no,
return;
mutex_lock(&epc->lock);
- epc->ops->clear_bar(epc, func_no, epf_bar);
+ epc->ops->clear_bar(epc, func_no, vfunc_no, epf_bar);
mutex_unlock(&epc->lock);
}
EXPORT_SYMBOL_GPL(pci_epc_clear_bar);
@@ -399,12 +411,13 @@ EXPORT_SYMBOL_GPL(pci_epc_clear_bar);
/**
* pci_epc_set_bar() - configure BAR in order for host to assign PCI addr space
* @epc: the EPC device on which BAR has to be configured
- * @func_no: the endpoint function number in the EPC device
+ * @func_no: the physical endpoint function number in the EPC device
+ * @vfunc_no: the virtual endpoint function number in the physical function
* @epf_bar: the struct epf_bar that contains the BAR information
*
* Invoke to configure the BAR of the endpoint device.
*/
-int pci_epc_set_bar(struct pci_epc *epc, u8 func_no,
+int pci_epc_set_bar(struct pci_epc *epc, u8 func_no, u8 vfunc_no,
struct pci_epf_bar *epf_bar)
{
int ret;
@@ -423,7 +436,7 @@ int pci_epc_set_bar(struct pci_epc *epc, u8 func_no,
return 0;
mutex_lock(&epc->lock);
- ret = epc->ops->set_bar(epc, func_no, epf_bar);
+ ret = epc->ops->set_bar(epc, func_no, vfunc_no, epf_bar);
mutex_unlock(&epc->lock);
return ret;
@@ -433,7 +446,8 @@ EXPORT_SYMBOL_GPL(pci_epc_set_bar);
/**
* pci_epc_write_header() - write standard configuration header
* @epc: the EPC device to which the configuration header should be written
- * @func_no: the endpoint function number in the EPC device
+ * @func_no: the physical endpoint function number in the EPC device
+ * @vfunc_no: the virtual endpoint function number in the physical function
* @header: standard configuration header fields
*
* Invoke to write the configuration header to the endpoint controller. Every
@@ -441,7 +455,7 @@ EXPORT_SYMBOL_GPL(pci_epc_set_bar);
* configuration header would be written. The callback function should write
* the header fields to this dedicated location.
*/
-int pci_epc_write_header(struct pci_epc *epc, u8 func_no,
+int pci_epc_write_header(struct pci_epc *epc, u8 func_no, u8 vfunc_no,
struct pci_epf_header *header)
{
int ret;
@@ -453,7 +467,7 @@ int pci_epc_write_header(struct pci_epc *epc, u8 func_no,
return 0;
mutex_lock(&epc->lock);
- ret = epc->ops->write_header(epc, func_no, header);
+ ret = epc->ops->write_header(epc, func_no, vfunc_no, header);
mutex_unlock(&epc->lock);
return ret;
diff --git a/include/linux/pci-epc.h b/include/linux/pci-epc.h
index ad118a3f1330..ab389d62ee6c 100644
--- a/include/linux/pci-epc.h
+++ b/include/linux/pci-epc.h
@@ -41,26 +41,28 @@ enum pci_epc_irq_type {
* @owner: the module owner containing the ops
*/
struct pci_epc_ops {
- int (*write_header)(struct pci_epc *epc, u8 func_no,
+ int (*write_header)(struct pci_epc *epc, u8 func_no, u8 vfunc_no,
struct pci_epf_header *hdr);
- int (*set_bar)(struct pci_epc *epc, u8 func_no,
+ int (*set_bar)(struct pci_epc *epc, u8 func_no, u8 vfunc_no,
struct pci_epf_bar *epf_bar);
- void (*clear_bar)(struct pci_epc *epc, u8 func_no,
+ void (*clear_bar)(struct pci_epc *epc, u8 func_no, u8 vfunc_no,
struct pci_epf_bar *epf_bar);
- int (*map_addr)(struct pci_epc *epc, u8 func_no,
+ int (*map_addr)(struct pci_epc *epc, u8 func_no, u8 vfunc_no,
phys_addr_t addr, u64 pci_addr, size_t size);
- void (*unmap_addr)(struct pci_epc *epc, u8 func_no,
+ void (*unmap_addr)(struct pci_epc *epc, u8 func_no, u8 vfunc_no,
phys_addr_t addr);
- int (*set_msi)(struct pci_epc *epc, u8 func_no, u8 interrupts);
- int (*get_msi)(struct pci_epc *epc, u8 func_no);
- int (*set_msix)(struct pci_epc *epc, u8 func_no, u16 interrupts);
- int (*get_msix)(struct pci_epc *epc, u8 func_no);
- int (*raise_irq)(struct pci_epc *epc, u8 func_no,
+ int (*set_msi)(struct pci_epc *epc, u8 func_no, u8 vfunc_no,
+ u8 interrupts);
+ int (*get_msi)(struct pci_epc *epc, u8 func_no, u8 vfunc_no);
+ int (*set_msix)(struct pci_epc *epc, u8 func_no, u8 vfunc_no,
+ u16 interrupts);
+ int (*get_msix)(struct pci_epc *epc, u8 func_no, u8 vfunc_no);
+ int (*raise_irq)(struct pci_epc *epc, u8 func_no, u8 vfunc_no,
enum pci_epc_irq_type type, u16 interrupt_num);
int (*start)(struct pci_epc *epc);
void (*stop)(struct pci_epc *epc);
const struct pci_epc_features* (*get_features)(struct pci_epc *epc,
- u8 func_no);
+ u8 func_no, u8 vfunc_no);
struct module *owner;
};
@@ -162,27 +164,29 @@ void pci_epc_destroy(struct pci_epc *epc);
int pci_epc_add_epf(struct pci_epc *epc, struct pci_epf *epf);
void pci_epc_linkup(struct pci_epc *epc);
void pci_epc_remove_epf(struct pci_epc *epc, struct pci_epf *epf);
-int pci_epc_write_header(struct pci_epc *epc, u8 func_no,
+int pci_epc_write_header(struct pci_epc *epc, u8 func_no, u8 vfunc_no,
struct pci_epf_header *hdr);
-int pci_epc_set_bar(struct pci_epc *epc, u8 func_no,
+int pci_epc_set_bar(struct pci_epc *epc, u8 func_no, u8 vfunc_no,
struct pci_epf_bar *epf_bar);
-void pci_epc_clear_bar(struct pci_epc *epc, u8 func_no,
+void pci_epc_clear_bar(struct pci_epc *epc, u8 func_no, u8 vfunc_no,
struct pci_epf_bar *epf_bar);
-int pci_epc_map_addr(struct pci_epc *epc, u8 func_no,
+int pci_epc_map_addr(struct pci_epc *epc, u8 func_no, u8 vfunc_no,
phys_addr_t phys_addr,
u64 pci_addr, size_t size);
-void pci_epc_unmap_addr(struct pci_epc *epc, u8 func_no,
+void pci_epc_unmap_addr(struct pci_epc *epc, u8 func_no, u8 vfunc_no,
phys_addr_t phys_addr);
-int pci_epc_set_msi(struct pci_epc *epc, u8 func_no, u8 interrupts);
-int pci_epc_get_msi(struct pci_epc *epc, u8 func_no);
-int pci_epc_set_msix(struct pci_epc *epc, u8 func_no, u16 interrupts);
-int pci_epc_get_msix(struct pci_epc *epc, u8 func_no);
-int pci_epc_raise_irq(struct pci_epc *epc, u8 func_no,
+int pci_epc_set_msi(struct pci_epc *epc, u8 func_no, u8 vfunc_no,
+ u8 interrupts);
+int pci_epc_get_msi(struct pci_epc *epc, u8 func_no, u8 vfunc_no);
+int pci_epc_set_msix(struct pci_epc *epc, u8 func_no, u8 vfunc_no,
+ u16 interrupts);
+int pci_epc_get_msix(struct pci_epc *epc, u8 func_no, u8 vfunc_no);
+int pci_epc_raise_irq(struct pci_epc *epc, u8 func_no, u8 vfunc_no,
enum pci_epc_irq_type type, u16 interrupt_num);
int pci_epc_start(struct pci_epc *epc);
void pci_epc_stop(struct pci_epc *epc);
const struct pci_epc_features *pci_epc_get_features(struct pci_epc *epc,
- u8 func_no);
+ u8 func_no, u8 vfunc_no);
unsigned int pci_epc_get_first_free_bar(const struct pci_epc_features
*epc_features);
struct pci_epc *pci_epc_get(const char *epc_name);
--
2.17.1
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