PCI: Add 32 GT/s decoding in some macros

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>
Acked-by: Tim Gardner <tim.gardner@canonical.com>
Acked-by: Thadeu Lima de Souza Cascardo <cascardo@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>

diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h
index 6f34f9526f1c341a535ad2c2e6c5f92b973d17a5..80de7bea03e491b41967bd085b0504905ea0a55d 100644 (file)
--- 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 : \