[PATCH 1/3] pci: add "fundamental reset" quirk
Alexey Kardashevskiy
aik at ozlabs.ru
Fri Jan 17 16:08:46 EST 2014
From: Thadeu Lima de Souza Cascardo <cascardo at linux.vnet.ibm.com>
Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo at linux.vnet.ibm.com>
---
drivers/pci/quirks.c | 21 +++++++++++++++++++++
1 file changed, 21 insertions(+)
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index f6c31fa..f3eedbf 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -3271,6 +3271,19 @@ static int reset_chelsio_generic_dev(struct pci_dev *dev, int probe)
return 0;
}
+static int reset_fundamental(struct pci_dev *dev, int probe)
+{
+ if (probe)
+ return 0;
+
+ pci_set_pcie_reset_state(dev, pcie_hot_reset);
+ msleep(250);
+ pci_set_pcie_reset_state(dev, pcie_deassert_reset);
+ msleep(1800);
+
+ return 0;
+}
+
#define PCI_DEVICE_ID_INTEL_82599_SFP_VF 0x10ed
#define PCI_DEVICE_ID_INTEL_IVB_M_VGA 0x0156
#define PCI_DEVICE_ID_INTEL_IVB_M2_VGA 0x0166
@@ -3286,6 +3299,14 @@ static const struct pci_dev_reset_methods pci_dev_reset_methods[] = {
reset_intel_generic_dev },
{ PCI_VENDOR_ID_CHELSIO, PCI_ANY_ID,
reset_chelsio_generic_dev },
+
+ { PCI_VENDOR_ID_IBM, PCI_ANY_ID,
+ reset_fundamental },
+ { PCI_VENDOR_ID_MELLANOX, PCI_ANY_ID,
+ reset_fundamental },
+ { PCI_VENDOR_ID_TI, PCI_ANY_ID,
+ reset_fundamental },
+
{ 0 }
};
--
1.8.4.rc4
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