net/hns3: list supported ptypes for advanced Rx descriptor

[dpdk.git] / doc / guides / rawdevs / ntb.rst

diff --git a/doc/guides/rawdevs/ntb.rst b/doc/guides/rawdevs/ntb.rst
index 5847213..2c5fa76 100644 (file)
--- a/doc/guides/rawdevs/ntb.rst
+++ b/doc/guides/rawdevs/ntb.rst
@@ -14,28 +14,22 @@ allocation for the peer to access and read/write allocated memory from peer.
 Also, the PMD allows to use doorbell registers to notify the peer and share
 some information by using scratchpad registers.
 
-BIOS setting on Intel Skylake
------------------------------
+BIOS setting on Intel Xeon
+--------------------------
 
-Intel Non-transparent Bridge needs special BIOS setting. Since the PMD only
-supports Intel Skylake platform, introduce BIOS setting here. The referencce
-is https://www.intel.com/content/dam/support/us/en/documents/server-products/Intel_Xeon_Processor_Scalable_Family_BIOS_User_Guide.pdf
+Intel Non-transparent Bridge needs special BIOS setting. The referencce for
+Skylake is https://www.intel.com/content/dam/support/us/en/documents/server-products/Intel_Xeon_Processor_Scalable_Family_BIOS_User_Guide.pdf
 
 - Set the needed PCIe port as NTB to NTB mode on both hosts.
-- Enable NTB bars and set bar size of bar 23 and bar 45 as 12-29 (2K-512M)
-  on both hosts. Note that bar size on both hosts should be the same.
+- Enable NTB bars and set bar size of bar 23 and bar 45 as 12-29 (4K-512M)
+  on both hosts (for Ice Lake, bar size can be set as 12-51, namely 4K-128PB).
+  Note that bar size on both hosts should be the same.
 - Disable split bars for both hosts.
 - Set crosslink control override as DSD/USP on one host, USD/DSP on
   another host.
 - Disable PCIe PII SSC (Spread Spectrum Clocking) for both hosts. This
   is a hardware requirement.
 
-Build Options
--------------
-
-- ``CONFIG_RTE_LIBRTE_PMD_NTB_RAWDEV`` (default ``y``)
-
-   Toggle compilation of the ``ntb`` driver.
 
 Device Setup
 ------------
@@ -52,11 +46,11 @@ NTB PMD needs kernel PCI driver to support write combining (WC) to get
 better performance. The difference will be more than 10 times.
 To enable WC, there are 2 ways.
 
-- Insert igb_uio with ``wc_active=1`` flag if use igb_uio driver.
+- Insert igb_uio with ``wc_activate=1`` flag if use igb_uio driver.
 
 .. code-block:: console
 
-  insmod igb_uio.ko wc_active=1
+  insmod igb_uio.ko wc_activate=1
 
 - Enable WC for NTB device's Bar 2 and Bar 4 (Mapped memory) manually.
   The reference is https://www.kernel.org/doc/html/latest/x86/mtrr.html
@@ -151,4 +145,4 @@ like the following:
 Limitation
 ----------
 
-- This PMD only supports Intel Skylake platform.
+- This PMD only supports Intel Skylake and Ice Lake platforms.