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From: Vinicius Costa Gomes <vinicius.gomes@intel.com>
To: intel-wired-lan@lists.osuosl.org
Cc: Vinicius Costa Gomes <vinicius.gomes@intel.com>,
	sasha.neftin@intel.com, anthony.l.nguyen@intel.com,
	linux-pci@vger.kernel.org, bhelgaas@google.com,
	netdev@vger.kernel.org, mlichvar@redhat.com,
	richardcochran@gmail.com
Subject: [PATCH next-queue v3 2/3] igc: Enable PCIe PTM
Date: Mon, 22 Mar 2021 09:18:21 -0700	[thread overview]
Message-ID: <20210322161822.1546454-3-vinicius.gomes@intel.com> (raw)
In-Reply-To: <20210322161822.1546454-1-vinicius.gomes@intel.com>

In practice, enabling PTM also sets the enabled_ptm flag in the PCI
device, the flag will be used for detecting if PTM is enabled before
adding support for the SYSOFFSET_PRECISE ioctl() (which is added by
implementing the getcrosststamp() PTP function).

Signed-off-by: Vinicius Costa Gomes <vinicius.gomes@intel.com>
---
 drivers/net/ethernet/intel/igc/igc_main.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/net/ethernet/intel/igc/igc_main.c b/drivers/net/ethernet/intel/igc/igc_main.c
index f77feadde8d2..04319ffae288 100644
--- a/drivers/net/ethernet/intel/igc/igc_main.c
+++ b/drivers/net/ethernet/intel/igc/igc_main.c
@@ -12,6 +12,8 @@
 #include <net/pkt_sched.h>
 #include <linux/bpf_trace.h>
 #include <net/xdp_sock_drv.h>
+#include <linux/pci.h>
+
 #include <net/ipv6.h>
 
 #include "igc.h"
@@ -5792,6 +5794,10 @@ static int igc_probe(struct pci_dev *pdev,
 
 	pci_enable_pcie_error_reporting(pdev);
 
+	err = pci_enable_ptm(pdev, NULL);
+	if (err < 0)
+		dev_err(&pdev->dev, "PTM not supported\n");
+
 	pci_set_master(pdev);
 
 	err = -ENOMEM;
-- 
2.31.0


  parent reply	other threads:[~2021-03-22 16:20 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-03-22 16:18 [PATCH next-queue v3 0/3] igc: Add support for " Vinicius Costa Gomes
2021-03-22 16:18 ` [PATCH next-queue v3 1/3] Revert "PCI: Make pci_enable_ptm() private" Vinicius Costa Gomes
2021-03-23 16:01   ` Christoph Hellwig
2021-03-23 18:40     ` Vinicius Costa Gomes
2021-03-23 18:45       ` Christoph Hellwig
2021-03-23 19:40   ` Bjorn Helgaas
2021-03-23 22:49     ` Vinicius Costa Gomes
2021-03-22 16:18 ` Vinicius Costa Gomes [this message]
2021-03-23 19:29   ` [PATCH next-queue v3 2/3] igc: Enable PCIe PTM Bjorn Helgaas
2021-03-23 19:40     ` Vinicius Costa Gomes
2021-03-22 16:18 ` [PATCH next-queue v3 3/3] igc: Add support for PTP getcrosststamp() Vinicius Costa Gomes
2021-03-23 19:39   ` Bjorn Helgaas
2021-03-23 21:37     ` Vinicius Costa Gomes

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