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authorMichael Brown <mcb30@ipxe.org>2015-11-25 09:32:45 +0000
committerMichael Brown <mcb30@ipxe.org>2015-11-30 22:13:27 +0000
commited18cd56789ff4484028995c17aef232e9cc8e83 (patch)
tree6f1b770bd22a4a22d9b61e278dd4ccd347eeb2ca /src/include
parent475cc92b0bfc3158514c5ec816a4d80f86ef51fc (diff)
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[pci] Add definitions for PCI Express function level reset (FLR)
Signed-off-by: Michael Brown <mcb30@ipxe.org>
Diffstat (limited to 'src/include')
-rw-r--r--src/include/ipxe/pci.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/src/include/ipxe/pci.h b/src/include/ipxe/pci.h
index a841e00..89d9d80 100644
--- a/src/include/ipxe/pci.h
+++ b/src/include/ipxe/pci.h
@@ -104,6 +104,10 @@ FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
#define PCI_PM_CTRL_PME_ENABLE 0x0100 /**< PME pin enable */
#define PCI_PM_CTRL_PME_STATUS 0x8000 /**< PME pin status */
+/** PCI Express */
+#define PCI_EXP_DEVCTL 0x08
+#define PCI_EXP_DEVCTL_FLR 0x8000 /**< Function level reset */
+
/** Uncorrectable error status */
#define PCI_ERR_UNCOR_STATUS 0x04
@@ -128,6 +132,9 @@ FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
( ( ( (base) & 0xff ) << 16 ) | ( ( (sub) & 0xff ) << 8 ) | \
( ( (progif) & 0xff) << 0 ) )
+/** PCI Express function level reset delay (in ms) */
+#define PCI_EXP_FLR_DELAY_MS 100
+
/** A PCI device ID list entry */
struct pci_device_id {
/** Name */