From: Kishon Vijay Abraham I <kishon@ti.com>
To: Bjorn Helgaas <bhelgaas@google.com>,
Jonathan Corbet <corbet@lwn.net>,
Kishon Vijay Abraham I <kishon@ti.com>,
Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>,
Arnd Bergmann <arnd@arndb.de>, Jon Mason <jdmason@kudzu.us>,
Dave Jiang <dave.jiang@intel.com>,
Allen Hubbe <allenbh@gmail.com>, Tom Joseph <tjoseph@cadence.com>,
Rob Herring <robh@kernel.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
<linux-pci@vger.kernel.org>, <linux-doc@vger.kernel.org>,
<linux-kernel@vger.kernel.org>, <linux-ntb@googlegroups.com>
Subject: [PATCH v8 12/18] PCI: cadence: Configure LM_EP_FUNC_CFG based on epc->function_num_map
Date: Wed, 11 Nov 2020 21:05:53 +0530 [thread overview]
Message-ID: <20201111153559.19050-13-kishon@ti.com> (raw)
In-Reply-To: <20201111153559.19050-1-kishon@ti.com>
The number of functions supported by the endpoint controller is
configured in LM_EP_FUNC_CFG based on func_no member of struct pci_epf.
Now that an endpoint function can be associated with two endpoint
controllers (primary and secondary), just using func_no will
not suffice as that will take into account only if the endpoint
controller is associated with the primary interface of endpoint
function. Instead use epc->function_num_map which will already have the
configured functions information (irrespective of whether the endpoint
controller is associated with primary or secondary interface).
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
---
drivers/pci/controller/cadence/pcie-cadence-ep.c | 7 +------
1 file changed, 1 insertion(+), 6 deletions(-)
diff --git a/drivers/pci/controller/cadence/pcie-cadence-ep.c b/drivers/pci/controller/cadence/pcie-cadence-ep.c
index 1fe6b8baca97..4e4eb30cd1a2 100644
--- a/drivers/pci/controller/cadence/pcie-cadence-ep.c
+++ b/drivers/pci/controller/cadence/pcie-cadence-ep.c
@@ -506,18 +506,13 @@ static int cdns_pcie_ep_start(struct pci_epc *epc)
struct cdns_pcie_ep *ep = epc_get_drvdata(epc);
struct cdns_pcie *pcie = &ep->pcie;
struct device *dev = pcie->dev;
- struct pci_epf *epf;
- u32 cfg;
int ret;
/*
* BIT(0) is hardwired to 1, hence function 0 is always enabled
* and can't be disabled anyway.
*/
- cfg = BIT(0);
- list_for_each_entry(epf, &epc->pci_epf, list)
- cfg |= BIT(epf->func_no);
- cdns_pcie_writel(pcie, CDNS_PCIE_LM_EP_FUNC_CFG, cfg);
+ cdns_pcie_writel(pcie, CDNS_PCIE_LM_EP_FUNC_CFG, epc->function_num_map);
ret = cdns_pcie_start_link(pcie);
if (ret) {
--
2.17.1
next prev parent reply other threads:[~2020-11-11 15:38 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-11 15:35 [PATCH v8 00/18] Implement NTB Controller using multiple PCI EP Kishon Vijay Abraham I
2020-11-11 15:35 ` [PATCH v8 01/18] Documentation: PCI: Add specification for the *PCI NTB* function device Kishon Vijay Abraham I
2020-11-11 15:35 ` [PATCH v8 02/18] PCI: endpoint: Make *_get_first_free_bar() take into account 64 bit BAR Kishon Vijay Abraham I
2020-11-11 15:35 ` [PATCH v8 03/18] PCI: endpoint: Add helper API to get the 'next' unreserved BAR Kishon Vijay Abraham I
2020-11-11 15:35 ` [PATCH v8 04/18] PCI: endpoint: Make *_free_bar() to return error codes on failure Kishon Vijay Abraham I
2020-11-11 15:35 ` [PATCH v8 05/18] PCI: endpoint: Remove unused pci_epf_match_device() Kishon Vijay Abraham I
2020-11-11 15:35 ` [PATCH v8 06/18] PCI: endpoint: Add support to associate secondary EPC with EPF Kishon Vijay Abraham I
2020-11-11 15:35 ` [PATCH v8 07/18] PCI: endpoint: Add support in configfs to associate two EPCs " Kishon Vijay Abraham I
2020-11-11 15:35 ` [PATCH v8 08/18] PCI: endpoint: Add pci_epc_ops to map MSI irq Kishon Vijay Abraham I
2020-11-11 15:35 ` [PATCH v8 09/18] PCI: endpoint: Add pci_epf_ops for epf drivers to expose function specific attrs Kishon Vijay Abraham I
2020-11-11 15:35 ` [PATCH v8 10/18] PCI: endpoint: Allow user to create sub-directory of 'EPF Device' directory Kishon Vijay Abraham I
2020-11-11 15:35 ` [PATCH v8 11/18] PCI: cadence: Implement ->msi_map_irq() ops Kishon Vijay Abraham I
2020-12-14 17:56 ` Tom Joseph
2020-12-15 16:01 ` Rob Herring
2021-01-04 13:12 ` Kishon Vijay Abraham I
2021-01-04 15:15 ` Rob Herring
2020-11-11 15:35 ` Kishon Vijay Abraham I [this message]
2020-12-14 17:56 ` [PATCH v8 12/18] PCI: cadence: Configure LM_EP_FUNC_CFG based on epc->function_num_map Tom Joseph
2020-11-11 15:35 ` [PATCH v8 13/18] PCI: endpoint: Add EP function driver to provide NTB functionality Kishon Vijay Abraham I
2020-11-11 15:35 ` [PATCH v8 14/18] PCI: Add TI J721E device to pci ids Kishon Vijay Abraham I
2020-11-11 15:35 ` [PATCH v8 15/18] NTB: Add support for EPF PCI-Express Non-Transparent Bridge Kishon Vijay Abraham I
2020-12-07 15:57 ` Jiang, Dave
2020-12-08 4:43 ` Kishon Vijay Abraham I
2020-11-11 15:35 ` [PATCH v8 16/18] NTB: tool: Enable the NTB/PCIe link on the local or remote side of bridge Kishon Vijay Abraham I
2020-12-07 15:55 ` Jiang, Dave
2020-12-08 4:46 ` Kishon Vijay Abraham I
2020-11-11 15:35 ` [PATCH v8 17/18] Documentation: PCI: Add configfs binding documentation for pci-ntb endpoint function Kishon Vijay Abraham I
2020-11-11 15:35 ` [PATCH v8 18/18] Documentation: PCI: Add userguide for PCI endpoint NTB function Kishon Vijay Abraham I
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