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[SRU,Focal,1/4] UBUNTU: SAUCE: PCI: Add 32 GT/s decoding in some macros

Message ID 20220503144219.252629-2-ian.may@canonical.com
State New
Headers show
Series Enable sysfs reporting for 32 GT/s PCI link speed | expand

Commit Message

Ian May May 3, 2022, 2:42 p.m. UTC 
From: Yicong Yang <yangyicong@hisilicon.com>

BugLink: https://bugs.launchpad.net/bugs/1970798

Link speed 32.0 GT/s is supported in PCIe r5.0. Add this speed to
PCIE_SPEED2STR() and PCIE_SPEED2MBS_ENC() to correctly decode it.

This is complementary to de76cda215d5 ("PCI: Decode PCIe 32 GT/s link
speed").

Link: https://lore.kernel.org/r/1581937984-40353-2-git-send-email-yangyicong@hisilicon.com
Signed-off-by: Yicong Yang <yangyicong@hisilicon.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
(cherry picked from commit 9cb3985af63555810bb07de50acdf4170771451d)
Signed-off-by: Ian May <ian.may@canonical.com>
---
 drivers/pci/pci.h | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)
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Patch

diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h
index 6f34f9526f1c..80de7bea03e4 100644
--- a/drivers/pci/pci.h
+++ b/drivers/pci/pci.h
@@ -292,7 +292,8 @@  void pci_bus_put(struct pci_bus *bus);
 
 /* PCIe link information */
 #define PCIE_SPEED2STR(speed) \
-	((speed) == PCIE_SPEED_16_0GT ? "16 GT/s" : \
+	((speed) == PCIE_SPEED_32_0GT ? "32 GT/s" : \
+	 (speed) == PCIE_SPEED_16_0GT ? "16 GT/s" : \
 	 (speed) == PCIE_SPEED_8_0GT ? "8 GT/s" : \
 	 (speed) == PCIE_SPEED_5_0GT ? "5 GT/s" : \
 	 (speed) == PCIE_SPEED_2_5GT ? "2.5 GT/s" : \
@@ -300,7 +301,8 @@  void pci_bus_put(struct pci_bus *bus);
 
 /* PCIe speed to Mb/s reduced by encoding overhead */
 #define PCIE_SPEED2MBS_ENC(speed) \
-	((speed) == PCIE_SPEED_16_0GT ? 16000*128/130 : \
+	((speed) == PCIE_SPEED_32_0GT ? 32000*128/130 : \
+	 (speed) == PCIE_SPEED_16_0GT ? 16000*128/130 : \
 	 (speed) == PCIE_SPEED_8_0GT  ?  8000*128/130 : \
 	 (speed) == PCIE_SPEED_5_0GT  ?  5000*8/10 : \
 	 (speed) == PCIE_SPEED_2_5GT  ?  2500*8/10 : \