diff options
| author | Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> | 2024-01-02 20:27:00 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-02-05 23:14:32 +0300 |
| commit | 7ec6e908ee17747d841af1e6eb5a289bacf547ec (patch) | |
| tree | 5d3bd66dea1379e52f141aa745362d8fe247352e | |
| parent | f8dcafcb54632536684336161da8bdd52120f95e (diff) | |
| download | linux-7ec6e908ee17747d841af1e6eb5a289bacf547ec.tar.xz | |
PCI: Fix 64GT/s effective data rate calculation
[ Upstream commit ac4f1897fa5433a1b07a625503a91b6aa9d7e643 ]
Unlike the lower rates, the PCIe 64GT/s Data Rate uses 1b/1b encoding, not
128b/130b (PCIe r6.1 sec 1.2, Table 1-1). Correct the PCIE_SPEED2MBS_ENC()
calculation to reflect that.
Link: https://lore.kernel.org/r/20240102172701.65501-1-ilpo.jarvinen@linux.intel.com
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | drivers/pci/pci.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h index 5484048f457d..99abc4cec0df 100644 --- a/drivers/pci/pci.h +++ b/drivers/pci/pci.h @@ -269,7 +269,7 @@ 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_64_0GT ? 64000*128/130 : \ + ((speed) == PCIE_SPEED_64_0GT ? 64000*1/1 : \ (speed) == PCIE_SPEED_32_0GT ? 32000*128/130 : \ (speed) == PCIE_SPEED_16_0GT ? 16000*128/130 : \ (speed) == PCIE_SPEED_8_0GT ? 8000*128/130 : \ |